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US4511380A Expired / Lapsed US ⏱️ 0.0 years remaining

Suspension and sealing of latticework and filters

Assignee: Daikin Applied Americas Inc
•
Filing: 1983-12-15
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Granted: 1985-04-16
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Expires: 2003-12-15
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Abstract

Abstract A latticework adapted for suspension from the ceiling and forming a double channel configuration of cross members carrying a sealant for sealing the filters supported thereon.

Inventors

  • 👤 Stephen M. Fetter

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 19:06
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/10; B01D46/0002; B01D46/0005; B01D46/56; B01D46/58; E; E04; E04B; E04B9/00; E04B9/02; F; F24; F24F; F24F13/00; F24F13/28; B01D2279/00; B01D2279/50; B01D2279/51; Y; Y10; Y10S; Y10S55/00; Y10S55/31

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 107 words
A sealed air filter assembly comprising, a suspended latticework of a plurality of filter supporting members running lengthwise and crosswise, each member defining a vertical center wall with lateral horizontal base flanges forming an inverted T-shaped cross section, said filter supporting members defining a plurality of filter openings, an angle frame received in each of said openings forming a perimeter channel chamber receiving sealant, a caulking compound between the lateral base flanges and the angle frames sealing the bottom of the channel chambers, a plurality of filter elements, a peripheral flange on each filter element extending into a perimeter channel chamber thereby providing a sealed filter assembly.
Claim 2
Dependent Claim 107 words
A sealed air filter assembly comprising, a suspended latticework of a plurality of filter supporting members running lengthwise and crosswise, each member defining a vertical center wall with lateral horizontal base flanges forming an inverted T-shaped cross section, said filter supporting members defining a plurality of filter openings, an angle frame received in each of said openings forming a perimeter channel chamber receiving sealant, a caulking compound between the lateral base flanges and the angle frames sealing the bottom of the channel chambers, a plurality of filter elements, a peripheral flange on each filter element extending into a perimeter channel chamber thereby providing a sealed filter assembly.
Claim 3
Dependent Claim 135 words
A sealed filter assembly comprising, a suspended latticework of filter supporting members running lengthwise and crosswise and defining rectangular filter openings, lateral horizontal base flanges on each member with each member forming an inverted T-shaped cross-sectional configuration, an angle frame of rectangular shape received in each of said openings and resting on the base flanges of said filter support members to form the outer walls of double channel chambers with said support members, a caulking compound between said base flanges and said angle frames to seal the bottom of said channel chambers, sealant received in said double channel chambers, a filter element, a downwardly extending peripheral extension on each of said filter elements extending into the sealant in said channel chambers surrounding each of said rectangular filter openings to thereby provide a sealed filter assembly.
Claim 4
Dependent Claim 135 words
A sealed filter assembly comprising, a suspended latticework of filter supporting members running lengthwise and crosswise and defining rectangular filter openings, lateral horizontal base flanges on each member with each member forming an inverted T-shaped cross-sectional configuration, an angle frame of rectangular shape received in each of said openings and resting on the base flanges of said filter support members to form the outer walls of double channel chambers with said support members, a caulking compound between said base flanges and said angle frames to seal the bottom of said channel chambers, sealant received in said double channel chambers, a filter element, a downwardly extending peripheral extension on each of said filter elements extending into the sealant in said channel chambers surrounding each of said rectangular filter openings to thereby provide a sealed filter assembly.
Claim 5
Dependent Claim 130 words
A sealed filter assembly comprising, a latticework of a plurality of filter supporting members arranged to form rectangular filter openings, an angle frame received in each filter opening, each member with the angle frames defining a double channel chamber cross-sectional configuration with each chamber forming a perimeter channel chamber around the filter opening receiving sealant, each member including an inverted T-shaped beam with horizontal lateral flanges, said angle frame each received in a filter opening on either side of the center wall of the inverted T-shaped beam supported on the lateral flanges, a caulking compound between said lateral flanges and said angle frame sealing the bottom of each channel chamber, a filter element having a downwardly extending peripheral flange each received in a perimeter chamber forming a sealed filter assembly.
Claim 6
Dependent Claim 130 words
A sealed filter assembly comprising, a latticework of a plurality of filter supporting members arranged to form rectangular filter openings, an angle frame received in each filter opening, each member with the angle frames defining a double channel chamber cross-sectional configuration with each chamber forming a perimeter channel chamber around the filter opening receiving sealant, each member including an inverted T-shaped beam with horizontal lateral flanges, said angle frame each received in a filter opening on either side of the center wall of the inverted T-shaped beam supported on the lateral flanges, a caulking compound between said lateral flanges and said angle frame sealing the bottom of each channel chamber, a filter element having a downwardly extending peripheral flange each received in a perimeter chamber forming a sealed filter assembly.
Claim 7
Dependent Claim 30 words
A sealed filter assembly as set forth in claim 1 wherein, the central wall carries a plurality of hold down clips to retain said angle frame in the assembled position.
Claim 8
Dependent Claim 36 words
A sealed filter assembly as set forth in claim 2 wherein, the intersection of said filter supporting members includes a center wall, said center wall delineates four channel chambers at the intersection of said center walls.
Claim 9
Dependent Claim 32 words
A sealed filter assembly as set forth in claim 1 wherein, the intersection of said filter supporting members defines an integral fabricated structure with seal integrity for isolating adjacent perimeter channel chambers.
Claim 10
Dependent Claim 35 words
A sealed filter assembly as set forth in claim 1 wherein, said angle frame defines a right angle cross-sectional configuration, the vertical flange of said right angle defining the exterior wall of the channel chamber.
Claim 11
Dependent Claim 43 words
A sealed filter assembly as set forth in claim 1 wherein, the peripheral dimension of said angle frame is slightly smaller than the internal dimension of the center walls of said beams to accommodate reception of said angle frame in said filter openings.
Claim 12
Dependent Claim 28 words
A sealed filter assembly as set forth in claim 1 wherein, the intersection of said supporting members includes a structure for readily assembling and disassembling of the latticework.
Claim 13
Dependent Claim 36 words
A sealed filter assembly as set forth in claim 1 including, means adapted for suspending the latticework from the ceiling of the room, inverted T-shaped filter supporting member and angle frame define double channel sealant chambers.

References Cited (Backward Citations)

US1747364A Cited
US3093221A Cited
US3486311A Cited
US3552104A Cited
US3782082A Cited
US4088463A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-04-15 1988-10-15 1989-04-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-04-15 1992-10-15 1993-04-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-04-15 1996-10-15 1997-04-16 $7700.00 Window Closed / Lapsed

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